Pain in the sole of the foot may be caused by gout, but this symptom may also be caused by tendonitis, plantar fasciitis, tarsal tunnel syndrome and other diseases. 1. Gout: Gout is mainly caused by uric acid metabolism disorder, which can cause joint pain, redness and swelling of joints, etc. When the disease involves ankle, tarsometatarsal joints, intertarsal joints and other joints of the foot, it may lead to plantar pain symptoms. 2. Tendonitis: Tendonitis is mainly caused by sudden and serious trauma or muscle overuse, which can lead to swelling, pain and pressure pain in the affected area, and when the disease occurs in the foot, it may lead to plantar pain symptoms. 3. Plantar Fasciitis: Plantar fasciitis is caused by pulling, injury, prolonged standing, etc. It is mainly manifested as pain in the heel. 4. Tarsal Tunnel Syndrome (TTS): Flat feet, pronated feet, etc. can cause TTS and lead to pain, burning, numbness and other sensory abnormalities in the feet. There may be other causes of plantar pain, so patients are advised to go to orthopedics, rheumatology and immunology departments of regular hospitals for detailed consultation.